body{
    background-color: black;
    width: 90%;
    height:90%;
}
.content{
    width: 1000px;
    height:500px;
    background-color: #0ee9f8;
    margin: 100px;
    margin-left: 50%;
}
.btn1{
    width: 200px;
    height:50px;
    border-radius: 50px;
    background-color: blue;
    padding-left: 150px;
    padding-top: 30px;
}

.btn2{
    width: 200px;
    height:50px;
    border-radius: 50px;
    background-color: rgba(255, 00, 0.5);
    padding-left: 150px;
    padding-top: 30px;
}

.btn3{
    width: 200px;
    height:50px;
    border-radius: 50px;
    background-color: chartreuse;
    padding-left: 150px;
    padding-top: 30px;
}